First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso
We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon...
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| Format: | Article |
| Language: | English |
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Elsevier
2015-04-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315001756 |
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doaj-b97882599f8d4a448e814a7b873439d9 |
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Article |
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DOAJ |
| language |
English |
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Article |
| sources |
DOAJ |
| author |
P. Agnes T. Alexander A. Alton K. Arisaka H.O. Back B. Baldin K. Biery G. Bonfini M. Bossa A. Brigatti J. Brodsky F. Budano L. Cadonati F. Calaprice N. Canci A. Candela H. Cao M. Cariello P. Cavalcante A. Chavarria A. Chepurnov A.G. Cocco L. Crippa D. D'Angelo M. D'Incecco S. Davini M. De Deo A. Derbin A. Devoto F. Di Eusanio G. Di Pietro E. Edkins A. Empl A. Fan G. Fiorillo K. Fomenko G. Forster D. Franco F. Gabriele C. Galbiati A. Goretti L. Grandi M. Gromov M.Y. Guan Y. Guardincerri B. Hackett K. Herner E.V. Hungerford Al. Ianni An. Ianni C. Jollet K. Keeter C. Kendziora S. Kidner V. Kobychev G. Koh D. Korablev G. Korga A. Kurlej P.X. Li B. Loer P. Lombardi C. Love L. Ludhova S. Luitz Y.Q. Ma I. Machulin A. Mandarano S. Mari J. Maricic L. Marini C.J. Martoff A. Meregaglia E. Meroni P.D. Meyers R. Milincic D. Montanari A. Monte M. Montuschi M.E. Monzani P. Mosteiro B. Mount V. Muratova P. Musico A. Nelson S. Odrowski M. Okounkova M. Orsini F. Ortica L. Pagani M. Pallavicini E. Pantic L. Papp S. Parmeggiano R. Parsells K. Pelczar N. Pelliccia S. Perasso A. Pocar S. Pordes D. Pugachev H. Qian K. Randle G. Ranucci A. Razeto B. Reinhold A. Renshaw A. Romani B. Rossi N. Rossi S.D. Rountree D. Sablone P. Saggese R. Saldanha W. Sands S. Sangiorgio E. Segreto D. Semenov E. Shields M. Skorokhvatov O. Smirnov A. Sotnikov C. Stanford Y. Suvorov R. Tartaglia J. Tatarowicz G. Testera A. Tonazzo E. Unzhakov R.B. Vogelaar M. Wada S. Walker H. Wang Y. Wang A. Watson S. Westerdale M. Wojcik A. Wright X. Xiang J. Xu C.G. Yang J. Yoo S. Zavatarelli A. Zec C. Zhu G. Zuzel |
| spellingShingle |
P. Agnes T. Alexander A. Alton K. Arisaka H.O. Back B. Baldin K. Biery G. Bonfini M. Bossa A. Brigatti J. Brodsky F. Budano L. Cadonati F. Calaprice N. Canci A. Candela H. Cao M. Cariello P. Cavalcante A. Chavarria A. Chepurnov A.G. Cocco L. Crippa D. D'Angelo M. D'Incecco S. Davini M. De Deo A. Derbin A. Devoto F. Di Eusanio G. Di Pietro E. Edkins A. Empl A. Fan G. Fiorillo K. Fomenko G. Forster D. Franco F. Gabriele C. Galbiati A. Goretti L. Grandi M. Gromov M.Y. Guan Y. Guardincerri B. Hackett K. Herner E.V. Hungerford Al. Ianni An. Ianni C. Jollet K. Keeter C. Kendziora S. Kidner V. Kobychev G. Koh D. Korablev G. Korga A. Kurlej P.X. Li B. Loer P. Lombardi C. Love L. Ludhova S. Luitz Y.Q. Ma I. Machulin A. Mandarano S. Mari J. Maricic L. Marini C.J. Martoff A. Meregaglia E. Meroni P.D. Meyers R. Milincic D. Montanari A. Monte M. Montuschi M.E. Monzani P. Mosteiro B. Mount V. Muratova P. Musico A. Nelson S. Odrowski M. Okounkova M. Orsini F. Ortica L. Pagani M. Pallavicini E. Pantic L. Papp S. Parmeggiano R. Parsells K. Pelczar N. Pelliccia S. Perasso A. Pocar S. Pordes D. Pugachev H. Qian K. Randle G. Ranucci A. Razeto B. Reinhold A. Renshaw A. Romani B. Rossi N. Rossi S.D. Rountree D. Sablone P. Saggese R. Saldanha W. Sands S. Sangiorgio E. Segreto D. Semenov E. Shields M. Skorokhvatov O. Smirnov A. Sotnikov C. Stanford Y. Suvorov R. Tartaglia J. Tatarowicz G. Testera A. Tonazzo E. Unzhakov R.B. Vogelaar M. Wada S. Walker H. Wang Y. Wang A. Watson S. Westerdale M. Wojcik A. Wright X. Xiang J. Xu C.G. Yang J. Yoo S. Zavatarelli A. Zec C. Zhu G. Zuzel First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso Physics Letters B |
| author_facet |
P. Agnes T. Alexander A. Alton K. Arisaka H.O. Back B. Baldin K. Biery G. Bonfini M. Bossa A. Brigatti J. Brodsky F. Budano L. Cadonati F. Calaprice N. Canci A. Candela H. Cao M. Cariello P. Cavalcante A. Chavarria A. Chepurnov A.G. Cocco L. Crippa D. D'Angelo M. D'Incecco S. Davini M. De Deo A. Derbin A. Devoto F. Di Eusanio G. Di Pietro E. Edkins A. Empl A. Fan G. Fiorillo K. Fomenko G. Forster D. Franco F. Gabriele C. Galbiati A. Goretti L. Grandi M. Gromov M.Y. Guan Y. Guardincerri B. Hackett K. Herner E.V. Hungerford Al. Ianni An. Ianni C. Jollet K. Keeter C. Kendziora S. Kidner V. Kobychev G. Koh D. Korablev G. Korga A. Kurlej P.X. Li B. Loer P. Lombardi C. Love L. Ludhova S. Luitz Y.Q. Ma I. Machulin A. Mandarano S. Mari J. Maricic L. Marini C.J. Martoff A. Meregaglia E. Meroni P.D. Meyers R. Milincic D. Montanari A. Monte M. Montuschi M.E. Monzani P. Mosteiro B. Mount V. Muratova P. Musico A. Nelson S. Odrowski M. Okounkova M. Orsini F. Ortica L. Pagani M. Pallavicini E. Pantic L. Papp S. Parmeggiano R. Parsells K. Pelczar N. Pelliccia S. Perasso A. Pocar S. Pordes D. Pugachev H. Qian K. Randle G. Ranucci A. Razeto B. Reinhold A. Renshaw A. Romani B. Rossi N. Rossi S.D. Rountree D. Sablone P. Saggese R. Saldanha W. Sands S. Sangiorgio E. Segreto D. Semenov E. Shields M. Skorokhvatov O. Smirnov A. Sotnikov C. Stanford Y. Suvorov R. Tartaglia J. Tatarowicz G. Testera A. Tonazzo E. Unzhakov R.B. Vogelaar M. Wada S. Walker H. Wang Y. Wang A. Watson S. Westerdale M. Wojcik A. Wright X. Xiang J. Xu C.G. Yang J. Yoo S. Zavatarelli A. Zec C. Zhu G. Zuzel |
| author_sort |
P. Agnes |
| title |
First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso |
| title_short |
First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso |
| title_full |
First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso |
| title_fullStr |
First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso |
| title_full_unstemmed |
First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso |
| title_sort |
first results from the darkside-50 dark matter experiment at laboratori nazionali del gran sasso |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2015-04-01 |
| description |
We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a (46.4±0.7) kg active mass, operated inside a 30 t organic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a (1422±67) kgd exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1×10−44 cm2 for a WIMP mass of 100 Gev/c2. Keywords: Dark matter, WIMP, Noble liquid detectors, Low-background detectors, Liquid scintillators |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269315001756 |
| work_keys_str_mv |
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doaj-b97882599f8d4a448e814a7b873439d92020-11-24T23:12:14ZengElsevierPhysics Letters B0370-26932015-04-01743456466First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran SassoP. Agnes0T. Alexander1A. Alton2K. Arisaka3H.O. Back4B. Baldin5K. Biery6G. Bonfini7M. Bossa8A. Brigatti9J. Brodsky10F. Budano11L. Cadonati12F. Calaprice13N. Canci14A. Candela15H. Cao16M. Cariello17P. Cavalcante18A. Chavarria19A. Chepurnov20A.G. Cocco21L. Crippa22D. D'Angelo23M. D'Incecco24S. Davini25M. De Deo26A. Derbin27A. Devoto28F. Di Eusanio29G. Di Pietro30E. Edkins31A. Empl32A. Fan33G. Fiorillo34K. Fomenko35G. Forster36D. Franco37F. Gabriele38C. Galbiati39A. Goretti40L. Grandi41M. Gromov42M.Y. Guan43Y. Guardincerri44B. Hackett45K. Herner46E.V. Hungerford47Al. Ianni48An. Ianni49C. Jollet50K. Keeter51C. Kendziora52S. Kidner53V. Kobychev54G. Koh55D. Korablev56G. Korga57A. Kurlej58P.X. Li59B. Loer60P. Lombardi61C. Love62L. Ludhova63S. Luitz64Y.Q. Ma65I. Machulin66A. Mandarano67S. Mari68J. Maricic69L. Marini70C.J. Martoff71A. Meregaglia72E. Meroni73P.D. Meyers74R. Milincic75D. Montanari76A. Monte77M. Montuschi78M.E. Monzani79P. Mosteiro80B. Mount81V. Muratova82P. Musico83A. Nelson84S. Odrowski85M. Okounkova86M. Orsini87F. Ortica88L. Pagani89M. Pallavicini90E. Pantic91L. Papp92S. Parmeggiano93R. Parsells94K. Pelczar95N. Pelliccia96S. Perasso97A. Pocar98S. Pordes99D. Pugachev100H. Qian101K. Randle102G. Ranucci103A. Razeto104B. Reinhold105A. Renshaw106A. Romani107B. Rossi108N. Rossi109S.D. Rountree110D. Sablone111P. Saggese112R. Saldanha113W. Sands114S. Sangiorgio115E. Segreto116D. Semenov117E. Shields118M. Skorokhvatov119O. Smirnov120A. Sotnikov121C. Stanford122Y. Suvorov123R. Tartaglia124J. Tatarowicz125G. Testera126A. Tonazzo127E. Unzhakov128R.B. Vogelaar129M. Wada130S. Walker131H. Wang132Y. Wang133A. Watson134S. Westerdale135M. Wojcik136A. Wright137X. Xiang138J. Xu139C.G. Yang140J. Yoo141S. Zavatarelli142A. Zec143C. Zhu144G. Zuzel145APC, Université Paris Diderot, Sorbonne Paris Cité, Paris 75205, FranceAmherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USAPhysics and Astronomy Department, Augustana College, Sioux Falls, SD 57197, USAPhysics and Astronomy Department, University of California, Los Angeles, CA 90095, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USAFermi National Accelerator Laboratory, Batavia, IL 60510, USAFermi National Accelerator Laboratory, Batavia, IL 60510, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyGran Sasso Science Institute, L'Aquila 67100, ItalyPhysics Department, Università degli Studi and INFN, Milano 20133, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USAPhysics Department, Università degli Studi Roma Tre and INFN, Roma 00146, ItalyAmherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USAPhysics and Astronomy Department, University of California, Los Angeles, CA 90095, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USAPhysics Department, Università degli Studi and INFN, Genova 16146, ItalyLaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyKavli Institute, Enrico Fermi Institute and Dept. of Physics, University of Chicago, Chicago, IL 60637, USASkobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, RussiaPhysics Department, Università degli Studi Federico II and INFN, Napoli 80126, ItalyPhysics Department, Università degli Studi and INFN, Milano 20133, ItalyPhysics Department, Università degli Studi and INFN, Milano 20133, ItalyLaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyDepartment of Physics, University of Houston, Houston, TX 77204, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalySt. Petersburg Nuclear Physics Institute, Gatchina 188350, RussiaPhysics Department, Università degli Studi and INFN, Cagliari 09042, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USAPhysics Department, Università degli Studi and INFN, Milano 20133, ItalyDepartment of Physics and Astronomy, University of Hawai'i, Honolulu, HI 96822, USADepartment of Physics, University of Houston, Houston, TX 77204, USAPhysics and Astronomy Department, University of California, Los Angeles, CA 90095, USAPhysics Department, Università degli Studi Federico II and INFN, Napoli 80126, ItalyJoint Institute for Nuclear Research, Dubna 141980, RussiaAmherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USAAPC, Université Paris Diderot, Sorbonne Paris Cité, Paris 75205, FranceLaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USAKavli Institute, Enrico Fermi Institute and Dept. of Physics, University of Chicago, Chicago, IL 60637, USASkobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, RussiaInstitute of High Energy Physics, Beijing 100049, ChinaFermi National Accelerator Laboratory, Batavia, IL 60510, USADepartment of Physics and Astronomy, University of Hawai'i, Honolulu, HI 96822, USAFermi National Accelerator Laboratory, Batavia, IL 60510, USADepartment of Physics, University of Houston, Houston, TX 77204, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USAIPHC, Université de Strasbourg, CNRS/IN2P3, Strasbourg 67037, FranceSchool of Natural Sciences, Black Hills State University, Spearfish, SD 57799, USAFermi National Accelerator Laboratory, Batavia, IL 60510, USAPhysics Department, Virginia Tech, Blacksburg, VA 24061, USAInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kiev 03680, UkraineDepartment of Physics, Princeton University, Princeton, NJ 08544, USAJoint Institute for Nuclear Research, Dubna 141980, RussiaDepartment of Physics, University of Houston, Houston, TX 77204, USAAmherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USAInstitute of High Energy Physics, Beijing 100049, ChinaDepartment of Physics, Princeton University, Princeton, NJ 08544, USAPhysics Department, Università degli Studi and INFN, Milano 20133, ItalyPhysics Department, Temple University, Philadelphia, PA 19122, USAPhysics Department, Università degli Studi and INFN, Milano 20133, ItalySLAC National Accelerator Laboratory, Menlo Park, CA 94025, USAInstitute of High Energy Physics, Beijing 100049, ChinaNational Research Centre Kurchatov Institute, Moscow 123182, Russia; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, RussiaGran Sasso Science Institute, L'Aquila 67100, ItalyPhysics Department, Università degli Studi Roma Tre and INFN, Roma 00146, ItalyDepartment of Physics and Astronomy, University of Hawai'i, Honolulu, HI 96822, USAPhysics Department, Università degli Studi Roma Tre and INFN, Roma 00146, ItalyPhysics Department, Temple University, Philadelphia, PA 19122, USAIPHC, Université de Strasbourg, CNRS/IN2P3, Strasbourg 67037, FrancePhysics Department, Università degli Studi and INFN, Milano 20133, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USA; Corresponding author.Department of Physics and Astronomy, University of Hawai'i, Honolulu, HI 96822, USAFermi National Accelerator Laboratory, Batavia, IL 60510, USAAmherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalySLAC National Accelerator Laboratory, Menlo Park, CA 94025, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USASchool of Natural Sciences, Black Hills State University, Spearfish, SD 57799, USASt. Petersburg Nuclear Physics Institute, Gatchina 188350, RussiaPhysics Department, Università degli Studi and INFN, Genova 16146, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyChemistry, Biology and Biotechnology Department, Università degli Studi and INFN, Perugia 06123, ItalyPhysics Department, Università degli Studi and INFN, Genova 16146, ItalyPhysics Department, Università degli Studi and INFN, Genova 16146, ItalyPhysics and Astronomy Department, University of California, Los Angeles, CA 90095, USA; Physics Department, University of California, Davis, CA 95616, USAPhysics Department, Virginia Tech, Blacksburg, VA 24061, USAPhysics Department, Università degli Studi and INFN, Milano 20133, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USASmoluchowski Institute of Physics, Jagiellonian University, Krakow 30059, PolandChemistry, Biology and Biotechnology Department, Università degli Studi and INFN, Perugia 06123, ItalyAPC, Université Paris Diderot, Sorbonne Paris Cité, Paris 75205, FranceAmherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USAFermi National Accelerator Laboratory, Batavia, IL 60510, USANational Research Centre Kurchatov Institute, Moscow 123182, RussiaDepartment of Physics, Princeton University, Princeton, NJ 08544, USAAmherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USAPhysics Department, Università degli Studi and INFN, Milano 20133, ItalyLaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyDepartment of Physics and Astronomy, University of Hawai'i, Honolulu, HI 96822, USAPhysics and Astronomy Department, University of California, Los Angeles, CA 90095, USAChemistry, Biology and Biotechnology Department, Università degli Studi and INFN, Perugia 06123, ItalyDepartment of Physics, Princeton University, Princeton, NJ 08544, USA; Physics Department, Università degli Studi Federico II and INFN, Napoli 80126, ItalyLaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyPhysics Department, Virginia Tech, Blacksburg, VA 24061, USADepartment of Physics, University of Houston, Houston, TX 77204, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyKavli Institute, Enrico Fermi Institute and Dept. of Physics, University of Chicago, Chicago, IL 60637, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USALawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalySt. Petersburg Nuclear Physics Institute, Gatchina 188350, RussiaDepartment of Physics, Princeton University, Princeton, NJ 08544, USANational Research Centre Kurchatov Institute, Moscow 123182, Russia; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, RussiaJoint Institute for Nuclear Research, Dubna 141980, RussiaJoint Institute for Nuclear Research, Dubna 141980, RussiaDepartment of Physics, Princeton University, Princeton, NJ 08544, USAPhysics and Astronomy Department, University of California, Los Angeles, CA 90095, USALaboratori Nazionali del Gran Sasso, Assergi (AQ) 67010, ItalyPhysics Department, Temple University, Philadelphia, PA 19122, USAPhysics Department, Università degli Studi and INFN, Genova 16146, ItalyAPC, Université Paris Diderot, Sorbonne Paris Cité, Paris 75205, FranceSt. Petersburg Nuclear Physics Institute, Gatchina 188350, RussiaPhysics Department, Virginia Tech, Blacksburg, VA 24061, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USAPhysics Department, Università degli Studi Federico II and INFN, Napoli 80126, ItalyPhysics and Astronomy Department, University of California, Los Angeles, CA 90095, USAInstitute of High Energy Physics, Beijing 100049, ChinaPhysics Department, Temple University, Philadelphia, PA 19122, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USASmoluchowski Institute of Physics, Jagiellonian University, Krakow 30059, PolandDepartment of Physics, Princeton University, Princeton, NJ 08544, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USAInstitute of High Energy Physics, Beijing 100049, ChinaFermi National Accelerator Laboratory, Batavia, IL 60510, USAPhysics Department, Università degli Studi and INFN, Genova 16146, ItalyAmherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, MA 01003, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USASmoluchowski Institute of Physics, Jagiellonian University, Krakow 30059, PolandWe report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a (46.4±0.7) kg active mass, operated inside a 30 t organic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a (1422±67) kgd exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1×10−44 cm2 for a WIMP mass of 100 Gev/c2. Keywords: Dark matter, WIMP, Noble liquid detectors, Low-background detectors, Liquid scintillatorshttp://www.sciencedirect.com/science/article/pii/S0370269315001756 |